BAKFlip MX4 Hard Folding Tonneau Cover to suit RAM 1500 DS/DT Crew Cab 5'7" without Rambox by BAK Industries
The BAK BAKFlip MX4 is a hard folding tonneau cover designed to provide secure cargo protection while maintaining practical access to the tub when needed. Built with aluminium panels and finished in a full matte black coating, the MX4 delivers a low-profile appearance that suits both work and touring setups.
The folding design allows the cover to be opened in stages or folded fully upright for near full-bed access when carrying larger gear. Upgraded prop rod clips help hold the cover securely in the open position, while revised bumpers and mounting hardware improve overall fit and usability.
Designed for year-round use, the MX4 uses EPDM perimeter seals and integrated drainage channels to help manage water resistance in varying weather conditions. Installation is clamp-on with no drilling required in most applications, although some vehicles may require drilling for drain tube routing.
Why Upgrade to the MX4?
The MX4 builds on the standard BAKFlip platform with a range of updated components and a more refined matte black finish throughout. Revised prop rod clips, upgraded bumpers, mounting rails, and hardware are designed to improve day-to-day functionality and provide a cleaner overall appearance.
For owners who regularly access their tub for work gear, touring equipment, or oversized cargo, the MX4 offers the flexibility of multiple driving positions while still maintaining the security and practicality of a hard folding cover.
Features
- Hard folding tonneau cover with aluminium panel construction
- Matte black finish across the entire cover
- Fits RAM 1500 DS/DT Crew Cab models with 5'7" tub and without RAMBox
- Folding design allows partial or full tub access
- Can be driven with the cover closed, partially open, or fully folded upright
- Upgraded prop rod clips provide a firmer hold when opened
- Shock-absorbing bumpers help protect the cover when folded upright
- EPDM seals and end caps designed to improve water resistance
- Multi-function tailgate seal system
- Clamp-on installation with no drilling required in most applications
- Drain tubes included
- Made in the USA
Please note: Some 8ft tub applications may affect visibility of the third brake light due to cab and brake light positioning.
Frequently Asked Questions
Does this cover suit both the RAM 1500 DS and DT models?
Yes. This version (SKU UF-BAK-00002) is designed to suit both the RAM 1500 DS and RAM 1500 DT Crew Cab with a 5'7" tub without RAMBox. The DS is the previous-generation Classic body style and the DT is the current-generation design. Both share the same 5'7" Crew Cab tub dimensions that this cover is built for. If your truck has RAMBox, a different part number is required.
What is included in the kit?
The kit includes the hard folding tonneau cover, side rails, mounting clamps, hardware, drain tubes, and installation instructions. No additional parts are required for a standard installation, though some vehicles may need minor drilling to route the drain tubes depending on the tub configuration.
How does the folding design work in practice?
The cover folds in sections from the rear toward the cab. You release the latch at the tailgate end and fold the panels forward, either stopping at the 2/3 position or folding all panels fully upright against the cab for near full-tub access. BAK's auto-latching side rails lock the cover automatically as you close it, so no separate locking step is needed along the bed length. Upgraded prop rod clips are designed to hold the cover firmly in the open position.
Can the cover be driven with the tub open or partially open?
Yes. The MX4 is designed to be driven in either a 2/3 open or fully open position, allowing you to transport taller or bulkier gear that would not fit under a closed cover. Shock-absorbing bumpers on the revised mounting hardware help protect the cover when fully folded upright. Always confirm the cover is properly secured in the open position before driving.
Will the cover affect the third brake light?
BAK notes that on some 8' bed models the third brake light may be partially obstructed due to cab height and light placement. This version is designed for the 5'7" Crew Cab tub where this is typically not an issue. If your RAM has an unusually low or rearward-mounted third brake light, it is worth confirming once the cover is fitted.
How does the MX4 handle water in heavy rain?
The MX4 uses EPDM perimeter seals and integrated drainage channels designed to manage water in normal rain conditions. Like most tonneau covers, it is intended to reduce rather than eliminate water ingress, particularly under sustained heavy rain or high-pressure washing. Drain tubes channel any residual water away from the tub floor. Gear that cannot tolerate any moisture should be stored in waterproof bags or sealed containers.
Does the MX4 suit a truck already fitted with a spray-on bed liner?
In most cases the MX4 is compatible with both spray-on and drop-in bed liners, as the clamps mount to the top surface of the bed rail. Spray-on liners applied up to or below the rail level generally do not affect fitment. If a drop-in liner has a raised outer lip that sits above the rail surface, this can occasionally affect how the clamps seat. If in doubt, contact us with details of your liner before ordering.
How does the MX4 folding cover compare to the Revolver X4s rolling cover for the same vehicle?
The MX4 folds in sections and can be driven in a partially-open position, which is useful for carrying gear of varying heights. The Revolver X4s rolls toward the cab and provides a cleaner open-bed profile with slightly less obstruction at the front when fully open, and generally delivers better rear visibility. If you want to mount over-bed racks or cargo systems, the Revolver X4TS with integrated T-slot rails is the option to consider, as neither the MX4 nor the X4s support that setup.
